La fuerza y el movimiento (Forces and Motion)

Kids often play with magnets, yet they don't learn how these playthings work for many years. Practical knowledge from their play can help them learn more about magnetism, and so can this book. Specially written for those with reading challenges or readers looking for a review, the main text covers important vocabulary, magnetic fields, and a discussion of why metals and magnets come together. Diagrams and succinct fact boxes offer additional ways to learn each concept and explain some ideas in greater detail.

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Rafael Alberti fue uno de los poetas españoles más grandes del siglo xx. Y también un extraordinario poeta para niños, a los que atraía por su personalidad y su amable aspecto de abuelo y mago. Sus poesías, muchas de ellas recogidas en esta espléndida ant

El Cazador de incendios andaba todo el día de un lado a otro cazando incendios con sus bolsas y cajas. Pero un día, un incendio se le resistió. Cuando ya sólo pensaba en su fracaso, precisamente ese día, encontró el amor.

Seguimos tras los pasos de mujeres realesEsta vez caminamos tras la huella de unaheroína de las luchas de la liberación deAmérica Latina. Juana Azurduy es nuestraantiprincesa del Alto Perú, o nuestra princesaguerrera, que luchó junto a su esposo ManuelPadilla, y conoció otros héroes como Belgrano y Güemes, y otras heroínas como las Amazonas, para liberar el Virreinato del Río de la Plata delas garras de España. En esta aventura, Juana y sus compañeras y compañeros muestran todaslas habilidades de combate que desplegaron contra los realistas. Pero además, el libro nos hablade la...

In an online world where the amount of information seems to increase exponentially even week to week, student researchers can find it an ever-greater challenge to distinguish credible, vetted content from hearsay and misinformation. This book on citing internet sources will help them determine which online sources are trustworthy and which are not. Its lively and engaging instructional tips will help readers successfully negotiate the vast landscape of information out there. They will produce quality research for papers now and beyond in their academic careers with skill and confidence.